<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<div id="app">
  <h2>{{fullName}}</h2>
</div>

<script src="../js/vue.js"></script>
<script>
  const app = new Vue({
    el: '#app',
    data: {
      firstName: 'Kobe',
      lastName: 'Bryant'
    },
    computed: {
      // fullName: function () {
      //   return this.firstName + " " + this.lastName
      // },
      // name: 'coderwhy'
      fullName: {
        // 计算属性一般是没有set方法的，只读属性
        // set: function (newValue) {
        //   console.log("------" + newValue)
        //   const names = newValue.split(" ")
        //   this.firstName = names[0]
        //   this.lastName = names[1]
        // },
        get: function () {
          return this.firstName + " " + this.lastName
        }
      },
      // 简化get的写法
      // fullName: function () {
      //   return this.firstName + " " + this.lastName
      // }
    }
  })
</script>
</body>
</html>
